This April 16, 2017 photo provided by Torie McCallum shows Sutherland Springs First Baptist Church shooting victims John and Crystal Holcombe in Floresville, Texas. John survived the shooting but his wife Crystal, who was pregnant, was killed along with three of their children Sunday, Nov. 5, at the church. Torie McCallum via AP

This is Peggy Warden, she was a Sunday school teacher and threw herself in front of her grandson Zach Poston and was fatally shot as she protected the 18-year-old, who then shielded a child who had been hiding under a pew. Jimmy Stevens, via AP

Zach Poston recovers at a hospital in San Antonio, TX. When a gunman opened fire onto the congregation at First Baptist Church in Sutherland Springs, Sunday school teacher Peggy Warden threw herself in front of her grandson Zach getting fatally shot as she protected the 18-year-old, who then shielded a child who had been hiding under a pew, according to relatives. Jimmy Stevens, via AP

This 2017 photo provided by Torie McCallum shows Sutherland Springs First Baptist Church shooting victims, from left, Megan Hill, Emily Hill, Greg Hill and survivor Evelyn Hill, bottom, in Floresville, Texas. Evelyn survived the Nov. 5 shooting at the church but her brother and sisters along with her mother, who was pregnant, were killed. Torie McCallum via AP

This April 16, 2017 photo provided by Torie McCallum shows Sutherland Springs First Baptist Church shooting victim Emily Hill in Floresville, Texas. Hill was killed along with her mother, who was pregnant, a brother and a sister at the church on Sunday, Nov. 5. Torie McCallum via AP

This 2017 photo provided by the Holcombe Family shows Sutherland Springs First Baptist Church shooting victim Megan Hill in Floresville, Texas. Hill was killed along with her mother, who was pregnant, a brother and a sister during the shooting at the church Sunday, Nov. 5. Holcombe Family Photo via AP

This November 2016 photo provided by Torie McCallum shows Sutherland Springs First Baptist Church shooting victim Greg Hill in Floresville, Texas. Hill died along with his mother, who was pregnant, and two of his sisters at the church on Sunday, Nov. 5, 2017. Torie McCallum via AP

This undated student ID photo released by the Seguin Independent School District shows Annabelle Pomeroy. The 14-year-old's parents, pastor Frank Pomeroy of the First Baptist Church of Sutherland Springs and Sherri Pomeroy, were out of town when a man opened fire inside the church in the small South Texas community on Sunday, Nov. 5, 2017, killing more than two dozen, including Annabelle. Seguin Independent School District via AP

This June 18, 2017, photo provided by Lorena Santos shows her relatives Therese Rodriguez and Richard Rodriguez in San Antonio, Texas. The couple were among those killed in the Sunday, Nov. 5, 2017, at the shooting at First Baptist Church in Sutherland Springs, Texas. Lorena Santos via AP

Undated photo of Shani Corrigan (left) and Robert Corrigan during Robert Corrigan's military retirement ceremony. Shani Corrigan and Robert Corrigan were two of the victims killed at the First Baptist Church of Sutherland Springs on November 5, 2017 in Sutherland Springs, Texas. Clare County Veterans' Services